Lettuce Planting Methods and Technical Key Points

1. Varieties

Lettuce has many varieties. Common ones include Emperor, Caesar, Queen, Olympia, and others. These names are truly grand, and they are all relatively excellent varieties, so pay attention when choosing.

2. Strong seedlings

Lettuce seeds are relatively small, and germination requires good conditions, so the seedling-raising and transplanting method is often used. This method is also the most common.

3. Watering

Generally water every 5 to 7 days. In spring, the climate is relatively good, so the amount of water can be smaller. During the growing period, more water is needed, and the soil should be kept moist.

Now I not only understand the planting time and methods of lettuce, but also understand why we can often eat lettuce. With the development of technology, many cultivation techniques have emerged. So let us take a look at the types of lettuce!

Lettuce Planting Methods

During the planting period, high-quality and disease-resistant varieties should be selected for lettuce crops, and timely fertilization and watering should be used to promote crop growth. If farmers understand lettuce planting methods, they can achieve high yields.

How to plant lettuce: seedling raising and sowing. In winter and early spring, cultivate in large or small greenhouses; in summer, cultivate under shade nets or in shaded sheds. For every 60 sq m of seedling land, apply 1500 kg of decomposed farmyard manure and 20 kg of superphosphate, then plow and mix evenly and level. For seedling raising and transplanting, every 667 sq m of cultivation field requires 20-30 sq m of seedbed and 25-30 g of seed. When sowing in high-temperature seasons, the seeds must be subjected to low-temperature germination. The method is: first soak in well water for about 6 hours, rub and wash, then remove and wrap in wet gauze, and place at 15°C-18°C for germination, or hang in a water well for germination, or place in a refrigerator (temperature controlled at about 5°C), and after 24 hours place the seeds in a cool place with insulation for germination.

How to plant lettuce: transplanting management. Lettuce seedlings are about 25 days old and can be transplanted when they have 4-6 true leaves, with a plant spacing of 14 cm x 18 cm. For every 667 sq m of transplanting soil, apply 4000-**** kg of organic fertilizer and 20 kg of superphosphate, or 50 kg of compound fertilizer. When transplanting, roots should be protected with soil, and rooting water should be watered in time. The planting depth should be such that the heart leaves are not buried. For transplanting in high-temperature seasons, the frame should be set up on the morning of the transplanting day, covered with a shade net, and transplanted after 4 p.m. For winter and spring cultivation, plastic film mulching can be used. For greenhouse cultivation, the daytime temperature should be controlled at 12-22°C as suitable. If the temperature is too low, attention should be paid to insulation. If the temperature is too high (above 24°C), the film should be uncovered for ventilation and cooling. Under normal circumstances, the side film of the greenhouse can be opened.

Lettuce planting techniques: field management. Lettuce requires more fertilizer, so it should be fertilized frequently and heavily. 5-6 days after transplanting, apply a small amount of quick-acting nitrogen fertilizer. After 15-20 days, apply 15-20 kg of compound fertilizer per 667 sq m. After 25-30 days, apply 10-15 kg of compound fertilizer, but human feces and urine must not be used as topdressing in the middle and late stages. After transplanting, the water demand is greatest. Water should be applied in a timely manner according to the weather after seedling recovery and soil moisture conditions. Generally, water once every 5-6 days, and watering must not be excessive in the middle and late stages.

Lettuce planting methods: pest and disease control. Aphid damage mostly occurs in autumn, winter, and spring, and can be controlled by spraying 40% dimethoate emulsifiable concentrate at 600-800 times dilution, or 50% pirimicarb at 2 times dilution, etc. Sclerotinia rot mostly occurs in February-March and can be controlled by spraying 70% thiophanate-methyl wettable powder at 500-700 times dilution or 50% iprodione powder at 1000-1500 times dilution. Soft rot is prone to occur in high-temperature and rainy months and can be controlled by spraying 47% kasugamycin-copper wettable powder at 1000 times dilution, or 77% copper hydroxide wettable powder at 500 times dilution. Stop application 15 days before harvest.

The above are lettuce planting methods. Farmers should strengthen field management between crops, prevent disease infection, and enable the crops to achieve a bumper harvest.

Introduction to Lettuce Planting Methods

Lettuce is a vegetable with very high nutritional value and has the reputation of "Queen of Vegetables." However, in recent years, due to severe environmental pollution, many lettuces sold on the market have suffered from varying degrees of contamination. In fact, friends with conditions can grow vegetables themselves. Growing them yourself and eating them yourself is truly completely natural green food. Today, the editor brings you an introduction to lettuce planting methods.

Soil selection

The first thing needed to plant lettuce is soil. We only need to prepare a piece of land. If there is no land, using cardboard boxes, foam boxes, etc. filled with soil is also feasible. The soil is best if it is relatively fertile. If there is no fertile soil to choose from, ordinary soil is also fine, but we need to increase the nutrients in the ordinary soil. The method is to spread leftover vegetables and fruits under the soil. After they rot, the fertility of the soil can be increased.

Sowing

Try to choose autumn for sowing. In this step of sowing, we first need to loosen the soil, then spread the lettuce seeds relatively evenly. Here we should note that the seeds should not be sown too densely, so as to avoid insufficient growing space. After sowing the seeds, pour some water, try to let the soil become thoroughly wet, and then cover the seeds with a layer of relatively fine soil.

Watering

Watering is also a great art. Just after sowing, water should be given about once every two or three days. After that, we do not need to deliberately pursue the number of waterings. As long as the soil can remain slightly moist, that is enough. As long as the watering frequency is correct, lettuce will emerge and sprout after about two weeks. Of course, the sprouting time is also related to the climate in different places. In places with high temperatures, the sprouting time will naturally be shorter.

Fertilizing

Since we are growing lettuce ourselves, naturally we do not want to use chemical fertilizers. Moreover, we have already buried some fruits and vegetables under the soil. These leftover fruits and vegetables are very good green manure and can basically maintain the green manure needed for lettuce growth. However, if we encounter the situation where lettuce leaves turn yellow, it is often because they do not have enough nutrients, basically because sowing was too dense. At this time, we need to transplant the overly dense lettuce to another environment.

Lettuce is naturally grown to be eaten. We can pick the leaves of the lettuce and then eat pure natural, pollution-free green food. We do not need to remove the whole lettuce plant. We only need to take its leaves for eating and leave the roots. Wait for it to continue growing leaves, and then we can eat a continuous supply of lettuce, until the lettuce flowers and sets seeds.